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pKa_Table - 2 10.3 CH 3 CH 2 SH 10.5 CH 3 CH 2 S ¯(CH 3 3...

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Chem 266 S.P.Forsey 1 Acid or Conjugate acid pK a Base or Conjugate Base -10.1 HI -10 I ¯ HBr -9 Br ¯ -8 -7.3 HCl -7 Cl ¯ -6.8 Very strong acids -6.1 Very weak bases H 2 SO 4 -5 to -3.0 HSO 4 ¯ -3.6 -2.4 -2.5 H 3 O + -1.7 H 2 O HNO 3 -1.3 NO 3 ¯ -1.2 CH 3 SO 3 -0.6 NO 2 OH O N NO 2 2 0.38 NO 2 O O N NO 2 2 0.0 0.2 Strong acids 0.64 Weak bases 1.0 O 2 N + NH 3 O 2 N NH 2 HSO 4 ¯ 2.0 SO 4 2- H 3 PO 4 2.1 H 2 PO 4 ¯ 1.3 N Cl H + N Cl 2.8 2.7 2.8 2.9
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Chem 266 S.P.Forsey 2 Acid or Conjugate acid pK a Base or Conjugate Base 3.2 HF 3.2 F ¯ HNO 2 3.4 NO 2 ¯ 3.4 3.8 3.9 4.0 Cl + NH 3 4.15 Cl NH 2 4.2 CO O 4.3 COH O CH 3 O 4.5 + NH 3 4.6 4.8 Weak acids 4.8 Weal bases NH 2 CH 3 5.1 5.2 6.2 H 2 CO 3 6.4 HCO 3 ¯ 6.7 H 2 S 7.0 HS ¯ 7.1 7.2 7.8 8.4 HCN 9.1 CN ¯ 9.3
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